In this assignment, you are going to enhance a Date class to add functions to overload several operators: 1. Increment (++) and decrement (--) operators, to increase the date by one day or decrease the date by one day, respectively. Include both pre and post increment and decrement. 2. Assignment operator (=) to copy date to another. 3. Relational operators (==, !=, <=,>=), to compare two dates. 4. Stream operators (<<, >>) for easy input and output. (Assume that the date is input and output in the format MM-DD-YYYY.) 5. Test all the functionalities in your main program. The files for class Date.h and Date.cpp are provided to you with the instructions. You can include these two files in your project. Then start to modify the code in both header file and implementation file. Test your class in your main program.

/*

* Date class implementation

*/

#include

#include "Date.h"

using namespace std;

void Date::setDate(int month, int day, int year)

{

if (year >= 1)

dYear = year;

else

dYear = 1900;

if (1 <= month && month <= 12)

dMonth = month;

else

dMonth = 1;

switch (dMonth)

{

case 1:

case 3:

case 5:

case 7:

case 8:

case 10:

case 12:

if (1 <= day && day <= 31)

dDay = day;

else

dDay = 1;

break;

case 4:

case 6:

case 9:

case 11:

if (1 <= day && day <= 30)

dDay = day;

else

dDay = 1;

break;

case 2:

if (isLeapYear())

{

if (1 <= day && day <= 29)

dDay = day;

else

dDay = 1;

}

else

{

if (1 <= day && day <= 28)

dDay = day;

else

dDay = 1;

}

}

}

void Date::setMonth(int m)

{

dMonth = m;

}

void Date::setDay(int d)

{

dDay = d;

}

void Date::setYear(int y)

{

dYear = y;

}

int Date::getMonth() const

{

return dMonth;

}

int Date::getDay() const

{

return dDay;

}

int Date::getYear() const

{

return dYear;

}

int Date::getDaysInMonth()

{

int noOfDays;

switch (dMonth)

{

case 1:

case 3:

case 5:

case 7:

case 8:

case 10:

case 12:

noOfDays = 31;

break;

case 4:

case 6:

case 9:

case 11:

noOfDays = 30;

break;

case 2:

if (isLeapYear())

noOfDays = 29;

else

noOfDays = 28;

}

return noOfDays;

}

bool Date::isLeapYear()

{

if (((dYear % 4 == 0) && (dYear % 100 != 0)) || dYear % 400 == 0)

return true;

else

return false;

}

Date::Date()

{

setDate(1, 1, 1900);

}

Date::Date(int month, int day, int year)

{

setDate(month, day, year);

}

Date::~Date(){}

/*

* Date class definition

*/

#ifndef DATE_H

#define DATE_H

#include

using namespace std;

class Date

{

public:

Date();

Date(int, int, int);

~Date();

void setDate(int, int, int);

void setMonth(int);

void setDay(int);

void setYear(int);

int getMonth() const;

int getDay() const;

int getYear() const;

bool isLeapYear();

int getDaysInMonth();

private:

int dMonth;

int dDay;

int dYear;

};

#endif